Two objects are in thermal equilibrium if they do not
exchange heat when in contact.
Zeroth law of thermodynamics: If A and B are in thermal
equilibrium with C, then A and B are in thermal equilibrium
with each other.
First law of thermodynamics: ΔU = Q + W, where ΔU is the
change in internal energy of a system, Q is the amount of heat
added, and W is the work done ON the system. Q > 0 if heat
is added, and Q < 0 if heat is removed.
Another version of the first law: ΔU = Q W, where W is
the work done BY the system.
If a process undergone by a system is represented on a P-V
diagram, then the work by the system in going from the state
represented by point A to the state represented by point B is
the area under the curve connecting A to B.
First Law of Thermodynamics
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
The book offers a complete review of your AP course, strategies to give you the edge on test day, and plenty of practice with AP-style test questions. It includes full length practice exams modeled on the real test and all the terms and concepts you need to know.
This book includes a review of all the topics tested including vectors, kinematics, fluid mechanics, optics and nuclear physics. Additionally, the book includes two full length tests made complete with descriptive solutions, and quick study tables for Physics B formulas and equations.